1. Mr am said : " Lien should spend more time in learning English " => Mr lam said Lien 2. " Buy a new car " I advise him 3. Mr Ngoc said : " you should make a list of new words in alphabetical order " => Mr Ngoc said 4. " remember to switch off when you've finished" he said =>

1. Mr am said: " Lien should spend more time in learning English."

=> Mr Lam said Lien should spend more time in learning English.

Or: Mr Lam advised Lien to spend more time in learning English.

2. " Buy a new car " I advise him.

=> I advised him to buy a new car.

3. Mr Ngoc said: " You should make a list of new words in alphabetical order ".

=> Mr Ngoc said I should make a list of new words in alphabetical order.

Or: Mr Ngoc advised me to make a list of new words in alphabetical order.

4. " Remember to switch off when you've finished" he said.

=> He reminded me to switch off when I've finished.